#
# Copyright IBM Corp. 2016 All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

def getAttributeFromJSON(attribute, jsonObject, msg):
    return getHierarchyAttributesFromJSON(attribute.split("."), jsonObject, msg)

def getHierarchyAttributesFromJSON(attributes, jsonObject, msg):
    if len(attributes) > 0:
        assert attributes[0] in jsonObject, msg
        return getHierarchyAttributesFromJSON(attributes[1:], jsonObject[attributes[0]], msg)
    return jsonObject